8 March 1995 Molecular dissociations in TEA-CO2 laser field
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Proceedings Volume 2461, ROMOPTO '94: Fourth Conference in Optics; (1995) https://doi.org/10.1117/12.203534
Event: ROMOPTO '94: 4th Conference on Optics, 1994, Bucharest, Romania
Abstract
Dimethylamine (DMA) and trimethylamine (TMA) molecules are photolyzed with a TEA- CO2 laser at 1035 cm-1 in focussed and unfocussed beams with fluences up to 12 J/cm2 and stable products are determined for up to 20 Torr pressure. The formation of stable products like CH4, C2H2, C2H4 and probably C2H6 proved that the main channel of infrared multiphotonic dissociation (IRMPD) of both molecules consists in scission of CH3 - N bond. The remaining energized radicals are converted to HCN in TMA IRMPD and HCN and NH3 in DMA IRMPD. In the last case, secondary reactions between CH3 radicals and DMA molecules yield to TMA formation. At prolonged irradiation, considerable quantities of TMA are formed which can react with CN and (CH3)2N radicals to produce (CH3)2N - CH2 - CN and (CH3)2N - CH2 - N(CH3)2 compounds.
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Ioan Deac, Ioan Deac, V. Cosma, V. Cosma, Valer Almasan, Valer Almasan, N. Palibroda, N. Palibroda, Ioan Ursu, Ioan Ursu, } "Molecular dissociations in TEA-CO2 laser field", Proc. SPIE 2461, ROMOPTO '94: Fourth Conference in Optics, (8 March 1995); doi: 10.1117/12.203534; https://doi.org/10.1117/12.203534
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